Difference between revisions of "2012-03-08 47 -40"

From Geohashing
imported>Wolkenjaeger
(Location)
imported>Fippe
(Location)
 
(18 intermediate revisions by 3 users not shown)
Line 1: Line 1:
 
 
<!-- If you did not specify these parameters in the template, please substitute appropriate values for IMAGE, LAT, LON, and DATE (YYYY-MM-DD format)  
 
<!-- If you did not specify these parameters in the template, please substitute appropriate values for IMAGE, LAT, LON, and DATE (YYYY-MM-DD format)  
  
Line 15: Line 14:
 
}}
 
}}
  
<!-- edit as necessary -->
+
 
 
__NOTOC__
 
__NOTOC__
 
== Location ==
 
== Location ==
Line 21: Line 20:
  
 
== Participants ==
 
== Participants ==
Me (wolkenjaeger), 11 other crew members and 178 passengers. Well, at the end only 4 people were knowing what geohashing is.
+
Me ([[User:wolkenjaeger]]), 11 other crew members and 178 passengers. Well, at the end only 4 people were knowing that we tried to get a geohash.
  
 
== Plans ==
 
== Plans ==
<!-- what were the original plans -->
+
Well, I learned about geohashing a few days ago in connection with the [[2012-02-26_global]]. So I prepared myself to chase the airways for geohashes from our flight from Zürich to New York.
  
 
== Expedition ==
 
== Expedition ==
<!-- how it all turned out. your narrative goes here. -->
+
What a great day to go flying. Clear skys and a great crew. That's the recipe for a successful and fun commercial flight.
 +
 
 +
As we don't receive any good GPS signals in the cockpit ([http://en.wikipedia.org/wiki/Faraday_cage Faraday Cage?]) I had to check the route manually for any geohashes enroute, which is quite some work as we are crossing a [[graticule]] in around 10 minutes average and my job is not just sitting there and check for random coordinates. Second problem is a pure air safety one: we just cannot go off our IFR flightplan, which means the hash needs to be right on our track.
 +
 
 +
The first point I wanted to test was in the [[graticule]] 47,-15 - that was the time I quickly learned that our first possibility was in [[graticule]] 47,-40. So I inserted a pilot waypoint "HASH2" into our flight management computer ([http://en.wikipedia.org/wiki/Flight_management_system FMS]) to check our progress enroute.
 +
 
 +
At the time of overflying the waypoint we slightly navigated off the track F to get get as close as possible. The commander took care of the flying as I took the proving photographs and the group photo.
 +
Additional Information: On the NAT system, you can go off track at a maximum of 2nm to the right, the point was within 1nm, we were flying 1nm right of the track anyway according to procedures so it did not take a lot to overfly the point.
 +
 
 +
On the flight back, I did not chase any geohashes, as I wanted to check on my first geohash first. Did I do everything correct?
 +
 
 +
On the next morning, after sleeping my jetlag out, I checked on the correctness of my first geohash and there it was: a huge mistake.
 +
I didn't read the rules well, and the geohash in the [[graticule]] 47,-40 was not N 47°57.319 W 40°27.327, but N 47°24.784 W 40°20.498!!!
 +
Noooo!!!! Where was my mistake?
 +
 
 +
[[30W_Time_Zone_Rule]] gave the solution. So that was my first expedition and my first contact with geohashing.
 +
However I hope you guys don't do the same mistake.
 +
 
 +
I will be back.
  
 
== Tracklog ==
 
== Tracklog ==
<!-- if your GPS device keeps a log, you may post a link here -->
+
n/a
  
 
== Photos ==  
 
== Photos ==  
<!-- Insert pictures between the gallery tags using the following format:
 
Image:2010-##-## ## ## Alpha.jpg | Witty Comment
 
-->
 
 
<gallery perrow="5">
 
<gallery perrow="5">
 +
Image:P1060021-LR 800.jpg | My first try: "HASH" in the [[graticule]] 48,-15
 +
Image:P1060024-LR 800.jpg | We are here, custom waypoint "HASH2" with a lateral distance of 0.0nm and the GPS (left) showing the coordinates.
 +
Image:P1060027-LR 800.jpg | We did it!
 
</gallery>
 
</gallery>
  
 
== Achievements ==
 
== Achievements ==
 
{{#vardefine:ribbonwidth|800px}}
 
{{#vardefine:ribbonwidth|800px}}
<!-- Add any achievement ribbons you earned below, or remove this section -->
 
  
 +
{{Blinded by Science
 +
| latitude = 47
 +
| longitude = -40
 +
| date = 2012-03-08
 +
| reason = geohash 30W rule confusion
 +
| name = wolkenjaeger
 +
}}
  
<!-- =============== USEFUL CATEGORIES FOLLOW ================
 
Delete the next line ONLY if you have chosen the appropriate categories below. If you are unsure, don't worry. People will read your report and help you with the classification. -->
 
[[Category:New report]]
 
  
<!-- Potential categories. Please include all the ones appropriate to your expedition -->
+
[[Category:Expeditions]]
<!-- If this is a planning page:
 
[[Category:Expedition planning]]
 
-->
 
  
<!-- An actual expedition:
 
[[Category:Expeditions]]
 
-- and one or more of --
 
 
[[Category:Expeditions with photos]]
 
[[Category:Expeditions with photos]]
[[Category:Expeditions with videos]]
+
[[Category:Coordinates not reached]]
[[Category:Expedition without GPS]]
 
-->
 
 
<!-- if you reached your coords:
 
[[Category:Coordinates reached]]
 
-->
 
  
<!-- or if you failed :(
+
[[Category:Not reached - Technology]]
[[Category:Coordinates not reached]]
+
{{location|XI}}
-- and a reason --
 
[[Category:Not reached - Mother Nature]]    when there is a natural obstacle between you and the target
 
[[Category:Not reached - No public access]]  when there is a man-made obstacle between you and the target
 
[[Category:Not reached - Technology]]       when you failed get your GPS, car, bike or such to work
 
[[Category:Not reached - Did not attempt]]  when you went to an alternate location, or decided early on to abort the expedition.
 
-->
 

Latest revision as of 13:48, 19 May 2019

Thu 8 Mar 2012 in 47,-40:
47.4130725, -40.3416416
geohashing.info google osm bing/os kml crox



Location

Somewhere over the North Atlantic, (almost) on track F of the NAT on this day.

Participants

Me (User:wolkenjaeger), 11 other crew members and 178 passengers. Well, at the end only 4 people were knowing that we tried to get a geohash.

Plans

Well, I learned about geohashing a few days ago in connection with the 2012-02-26_global. So I prepared myself to chase the airways for geohashes from our flight from Zürich to New York.

Expedition

What a great day to go flying. Clear skys and a great crew. That's the recipe for a successful and fun commercial flight.

As we don't receive any good GPS signals in the cockpit (Faraday Cage?) I had to check the route manually for any geohashes enroute, which is quite some work as we are crossing a graticule in around 10 minutes average and my job is not just sitting there and check for random coordinates. Second problem is a pure air safety one: we just cannot go off our IFR flightplan, which means the hash needs to be right on our track.

The first point I wanted to test was in the graticule 47,-15 - that was the time I quickly learned that our first possibility was in graticule 47,-40. So I inserted a pilot waypoint "HASH2" into our flight management computer (FMS) to check our progress enroute.

At the time of overflying the waypoint we slightly navigated off the track F to get get as close as possible. The commander took care of the flying as I took the proving photographs and the group photo. Additional Information: On the NAT system, you can go off track at a maximum of 2nm to the right, the point was within 1nm, we were flying 1nm right of the track anyway according to procedures so it did not take a lot to overfly the point.

On the flight back, I did not chase any geohashes, as I wanted to check on my first geohash first. Did I do everything correct?

On the next morning, after sleeping my jetlag out, I checked on the correctness of my first geohash and there it was: a huge mistake. I didn't read the rules well, and the geohash in the graticule 47,-40 was not N 47°57.319 W 40°27.327, but N 47°24.784 W 40°20.498!!! Noooo!!!! Where was my mistake?

30W_Time_Zone_Rule gave the solution. So that was my first expedition and my first contact with geohashing. However I hope you guys don't do the same mistake.

I will be back.

Tracklog

n/a

Photos

Achievements

Science.PNG
wolkenjaeger earned the Blinded by Science Consolation Prize
by failing to reach the (47, -40) geohash on 2012-03-08 geohash 30W rule confusion.